What were modern conservatives concerned about in the 1980s

One of the main Concern in the 1980s was The dominos theory

Explanation: The Dominos theory was a major concern for the Americans That Start in the 1950S to 1980s promoted at times by the government of the United States,

answer; /// i do believe that the correct answer is (a); a farming tribe that settled primarily along the mississippi and arkansas rivers;